Match List - I with List-II.

List-I List-II
(a) Cohesion
(b) Adhesion
(c) Surface tension
(d) Guttation

(i) More attraction in liquid phase
(ii)Mutual attraction among water molecules
(iii)Water loss in liquid phase
(iv) Attraction towards polar surfaces

Choose the correct answer from the options given below.

    (a) (b) (c) (d)
1. (iii) (i) (iv) (ii)
2. (ii) (i) (iv) (iii)
3. (ii) (iv) (i) (iii)
4. (iv) (iii) (ii) (i)

Subtopic:  Transpiration & Guttation |
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The process responsible for facilitating loss of water in liquid form from the tip of grass blades at night and early morning is:

1. Root pressure

2. Imbibition

3. Plasmolysis

4. Transpiration

Subtopic:  Transpiration & Guttation |
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Select the incorrect statement.

1. Transport of molecules in phloem can be bidirectional.

2. The movement of minerals in the xylem is unidirectional.

3. Unloading of sucrose at the sink does not involve the utilization of ATP.

4. Elements most easily mobilized in plants from one region to another are phosphorus, sulfur, nitrogen, and potassium.

Subtopic:  Phloem Translocation: Short Distance Transport | Phloem Translocation |
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Xylem translocates:

1. Water, minerals salts, some nitrogen and hormones

2. Water only

3. Water and mineral salts only

4. Water, mineral and some organic nitrogen only

Subtopic:  Photosynthesis Transpiration Compromise & Mineral Translocation |
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What is the direction of movement of sugars in phloem?

1.  Bi-directional

2.  Non-multidirectional

3.  Upward

4.  Downward

Subtopic:  Phloem Translocation |
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The main difference between active and passive transport across cell membrane is :

1. passive transport is non-selective whereas active transport is selective

2. passive transport requires a concentration gradient across a biological membrane whereas active transport requires energy to move solutes.

3. passive transport is confined to anionic carrier proteins whereas active transport is confined to cationic channel.

4. active transport occurs more rapidly than passive

Subtopic:  Diffusion | Membrane Transport |
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Which of the following is not a feature of active transport of solutes in plants ?

1. Occurs against concentration gradient

2. Non-selective

3. Occurs through membranes

4. Requires ATP

Subtopic:  Means of Transport: Active |
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What will be the direction of flow of water when a plant cell is placed in a Hypotonic solution?

1. Water will flow in both directions.

2. Water will flow out of the cell.

3. Water will flow into the cell.

4. No flow of water in any direction.

Subtopic:  Plasmolysis |
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Which of the following is not observed during apoplastic pathway?
1. Apoplast is continuous and does not provide any barrier to water movement.
2. Movement of water occurs through intercellular spaces and wall of the cells.
3. The movement does not involve crossing of cell membrane
4. The movement is aided by cytoplasmic streaming

Subtopic:  Pathways of transport |
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Addition of more solutes in a given solution will:
1. not affect the water potential at all
2. raise its water potential
3. lower its water potential
4. make its water potential zero

Subtopic:  Plant Water Relations: Water Potential: DPD |
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